feat: try cmp_dictionary

flakes/nvim/flake.nix

@@ -47,6 +47,7 @@
             inherit taplo-lsp;
 
             inherit ripgrep;
+            inherit wordnet;
           };
           # FIXME this should probably be ported over to nixpkgs
           copilotchat-nvim = pkgs.vimUtils.buildVimPlugin {
@@ -83,8 +84,9 @@
                   cmp-buffer
                   cmp-path
                   cmp-cmdline
+                  cmp-dictionary
 
-                  # Required by copilotchat-nvim
+                  # Required by copilotchat-nvim, cmp-dictionary, and potentially other plugins.
                   plenary-nvim
 
                   copilotchat-nvim

flakes/nvim/init.lua

@@ -439,6 +439,10 @@ local function configure_auto_completion()
       ['<CR>'] = cmp.mapping.confirm({ select = false }),
     }),
     sources = cmp.config.sources({
+      {
+        name = 'dictionary',
+        keyword_length = 2,
+      },
       { name = 'nvim_lsp' },
       { name = 'vsnip' },
       { name = 'copilot', group_index = 2 },
@@ -516,6 +520,16 @@ local function configure_auto_completion()
 
   -- vim.o.completeopt = 'menu,menuone,noselect'
   vim.o.completeopt = 'menu,menuone,noselect,preview'
+
+  require('cmp_dictionary').setup({
+    paths = { '/usr/share/dict/words' },
+    exact_length = 2,
+    first_case_insensitive = true,
+    document = {
+      enable = true,
+      command = { 'wn', '${label}', '-over' },
+    },
+  })
 end
 
 local function configure_status_bar()